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ifcviewer: rename sidecar transfer/record types; drop unused element hierarchy (sidecar v17)

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Rename the streamer/sidecar transfer and record types to describe what
they are rather than how they move:

  MeshChunk         -> StreamedMesh
  InstanceChunk     -> StreamedInstance
  InstanceCpu       -> InstanceInfo
  PackedElementInfo -> ElementTableRecord
  uploadMeshChunk   -> uploadStreamedMesh
  uploadInstanceChunk -> uploadStreamedInstance
  buildMeshChunk    -> buildStreamedMesh

and the two post-index sidecar metadata blocks:

  "critical" metadata -> "geometry" metadata  (meshes/instances/georef/TOC)
  "deferred" metadata -> "element"  metadata  (elements + string table)
  parseSidecarCritical -> parseSidecarGeometryMetadata
  parseSidecarDeferred -> parseSidecarElementMetadata

The one behavioural change: the element hierarchy (parent_id) was
carried through ElementInfo, ElementTableRecord, and the sidecar element
table but never consumed, so drop it and bump SIDECAR_VERSION 16 -> 17.
No back-compat: regenerate sidecars. sample.ifcview is regenerated at v17.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Dion Moult
2026-07-03 19:26:31 +10:00
parent da5c0b7991
commit 66d558ec2d
30 changed files with 240 additions and 240 deletions
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src/bonsaiviewer/ElementRegistry.cpp
+1 -3
View File
@@ -89,7 +89,7 @@ std::optional<express::Base> ElementRegistry::findEntity(uint32_t object_id) con
}
void ElementRegistry::onSidecarElementsReady(uint32_t /*model_id*/,
std::vector<PackedElementInfo> elements,
std::vector<ElementTableRecord> elements,
std::string string_table) {
auto string_from_table = [&](uint32_t offset, uint32_t length) -> QString {
if (length == 0 || offset + length > string_table.size()) return {};
@@ -101,7 +101,6 @@ void ElementRegistry::onSidecarElementsReady(uint32_t /*model_id*/,
info.object_id = packed_element.object_id;
info.model_id = packed_element.model_id;
info.ifc_id = packed_element.ifc_id;
info.parent_id = packed_element.parent_id;
info.guid = string_from_table(packed_element.guid_offset, packed_element.guid_length);
info.name = string_from_table(packed_element.name_offset, packed_element.name_length);
info.type = string_from_table(packed_element.type_offset, packed_element.type_length);
@@ -115,7 +114,6 @@ void ElementRegistry::onStreamedElementsReady(uint32_t /*model_id*/, std::vector
info.object_id = element.object_id;
info.model_id = element.model_id;
info.ifc_id = element.ifc_id;
info.parent_id = element.parent_id;
info.guid = QString::fromStdString(element.guid);
info.name = QString::fromStdString(element.name);
info.type = QString::fromStdString(element.type);